Personal Bests| Event | Result | Venue | Date |
|---|
| 800m | 2:08.26 | Lubbock, TX (USA) | 12.04.2008 | | 1500m | 4:06.23 | Eugene, OR (USA) | 22.04.2011 | | Mile | 4:29.64 | Toronto (CAN) | 11.06.2009 | | Mile ind. | 4:27.19 | College Station, TX (USA) | 28.02.2009 | | 2000m | 5:35.20 | Eugene, OR (USA) | 07.06.2009 | | 2000m ind. | 5:40.35 | Reggie Lewis Center, Boston, MA (USA) | 07.02.2015 | | 3000m | 8:34.18 | Boudewijnstadion, Bruxelles (BEL) | 05.09.2014 | | 3000m ind. | 8:41.72 | New York, NY (USA) | 14.02.2015 | | 2 Miles | 9:22.10 | Hayward Field, Eugene, OR (USA) | 31.05.2014 | | 2 Miles ind. | 9:21.04 | Reggie Lewis Center, Boston, MA (USA) | 08.02.2014 | | 5000m | 14:30.42 | Letzigrund, Zürich (SUI) | 08.09.2011 | | 5000m ind. | 14:52.67 | Boston, MA (USA) | 06.02.2010 | | 10,000m | 30:26.37 | Olympic Stadium, London (GBR) | 03.08.2012 | | 5 km Road | 15:38 | San José (USA) | 28.11.2013 | | 10 km Road | 32:35 | New York, NY (USA) | 08.06.2019 | | 15 km Road | 51:06 | Jacksonville, FL (USA) | 20.03.2021 | | Half Marathon | 1:08:31 | New York, NY (USA) | 16.03.2014 | | Marathon | 2:25:10 | Berlin (GER) | 29.09.2019 |
| Season's BestsNo season's bests available. |
World RankingsNot ranked currently. | | Year | Result | Venue | Date |
|---|
| 2008 | 2:08.26 | Lubbock, TX (USA) | 12.04.2008 | | 2009 | 2:09.60 | Lubbock, TX (USA) | 09.04.2009 |
No progression. | Year | Result | Venue | Date |
|---|
| 2004 | 4:21.3h | Nairobi (KEN) | 16.06.2004 | | 2005 | 4:28.61 | Fort Worth, TX (USA) | 23.04.2005 | | 2006 | 4:22.63 | Coffeyville, KS (USA) | 20.05.2006 | | 2007 | 4:21.57 | Lincoln, NE (USA) | 13.05.2007 | | 2008 | 4:06.67 | Des Moines, IA (USA) | 14.06.2008 | | 2009 | 4:07.68 | Burnaby (CAN) | 14.06.2009 | | 2010 | 4:07.82 | Eugene, OR (USA) | 28.05.2010 | | 2011 | 4:06.23 | Eugene, OR (USA) | 22.04.2011 | | 2012 | 4:08.59 | Eugene, OR (USA) | 20.04.2012 | | 2015 | 4:11.95 | Los Angeles, CA (USA) | 14.05.2015 |
| Year | Result | Venue | Date |
|---|
| 2009 | 4:29.64 | Toronto (CAN) | 11.06.2009 |
| Year | Result | Venue | Date |
|---|
| 2009 | 5:35.20 | Eugene, OR (USA) | 07.06.2009 |
| Year | Result | Venue | Date |
|---|
| 2006 | 9:48.97 | Lubbock, TX (USA) | 24.03.2006 | | 2011 | 8:51.07 | Eugene, OR (USA) | 19.03.2011 | | 2012 | 8:35.89 | Hayward Field, Eugene, OR (USA) | 02.06.2012 | | 2014 | 8:34.18 | Boudewijnstadion, Bruxelles (BEL) | 05.09.2014 | | 2015 | 8:50.07 | Hayward Field, Eugene, OR (USA) | 30.05.2015 |
| Year | Result | Venue | Date |
|---|
| 2005 | 16:34.90 | Arlington, TX (USA) | 06.05.2005 | | 2006 | 16:13.39 | Walnut, CA (USA) | 13.04.2006 | | 2007 | 15:19.72 | Walnut, CA (USA) | 13.04.2007 | | 2008 | 15:11.88 | Walnut, CA (USA) | 18.04.2008 | | 2009 | 15:09.03 | Carson, CA (USA) | 16.05.2009 | | 2010 | 14:38.64 | Boudewijnstadion, Bruxelles (BEL) | 27.08.2010 | | 2011 | 14:30.42 | Letzigrund, Zürich (SUI) | 08.09.2011 | | 2012 | 14:43.11 | Palo Alto, CA (USA) | 29.04.2012 | | 2014 | 14:37.18 | Stade Louis II, Monaco (MON) | 18.07.2014 | | 2015 | 14:47.75 | Hayward Field, Eugene, OR (USA) | 30.05.2015 | | 2016 | 14:43.98 | Hayward Field, Eugene, OR (USA) | 27.05.2016 |
| Year | Result | Venue | Date |
|---|
| 2000 | 33:47.4h | Nairobi (KEN) | 22.07.2000 | | 2005 | 36:45.07 | Levelland, TX (USA) | 18.05.2005 | | 2007 | 31:39.84 | Kobe (JPN) | 22.04.2007 | | 2008 | 31:25.45 | Palo Alto, CA (USA) | 04.05.2008 | | 2009 | 33:44.7h | Nairobi (KEN) | 26.06.2009 | | 2011 | 30:38.35 | Palo Alto, CA (USA) | 01.05.2011 | | 2012 | 30:26.37 | Olympic Stadium, London (GBR) | 03.08.2012 | | 2014 | 30:42.26 | Palo Alto, CA (USA) | 04.05.2014 | | 2015 | 31:44.42 | National Stadium, Beijing (CHN) | 24.08.2015 | | 2016 | 32:37.11 | Eldoret (KEN) | 30.06.2016 | | 2021 | 31:30.25 | Irvine, CA (USA) | 14.05.2021 |
| Year | Result | Venue | Date |
|---|
| 2009 | 15:41 | San José (USA) | 26.11.2009 | | 2011 | 16:03 | New York, NY (USA) | 05.11.2011 | | 2013 | 15:38 | San José (USA) | 28.11.2013 |
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